Paper-perforator.



C. DOM. PAPER PBRFORATOR.

APPLICATION FILED 00T.7, 1912. 1,129,652, Patented Feb. 23, 1915.

2 SHEETS-SHEET 1.

THE NORRIS PETERS C0., PHOTC-LITHO., WASHINGTUN. D4 C4 c. DGM. PAPERPERPORATOR.

APPLICATION FILED 00T. 7, 1912 1,129,652; Patented Feb.2:?1915.`

2 SHEETS-SHEET 2.

NORRIS PETERS C04, PHOTO-LITHO. WASHINGTON. DA C.

CHESLEY DOM, OF CINCINNATI, OHIO, ASSIGNOR T0 THE SAMUEL C. TATU'MCOMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

PAPER-FERFORATOR.

Specification of Letters Patent.

Patented Feb. 23, 1915.

To all whom it may concern y Be it known that I, CHESLEY DOM, a citizenof the United States, residing at Cincinnati, in the county of Hamiltonand State of Ohio, have invented certain new and useful Improvements inPaper-Perforators, of which the following is a specification.

My invention relates to a paper perforator or punch, and primarily to atype manually operated.

My invention comprises primarily a perforator unit of integral head andbase, with an intermediate cut-away portion,providing a throat betweenthe punch members, for the reception of the material to be perforated.The perforator units may be serially mounted upon a supporting frame orsuperstructure, and adjustable thereon, to provide various relativespacing, with the movable punch members of the series actuated by asingle actuating` rod, in the nature of a combined rack and shaft havinga toothed intermesh with each movable punch member. Thus, eachperforating unit has a unitary function in its adjustment, and itsintegral body formation provides rigidity and insures the maintenance ofthe alinement of its 'punch members.

One of the objects of my invention is to provide a perforator with oneor more punch or perforator units adjustable upon a base, with anoperating rod or shaft engaging all the movable punch members of theseries by a toothed intermesh.

Another object of my invention is to provide a perforator, with a punchmember supporting unit of integral head and base, and intermediatecut-away throat portion dividing the same. A movable punch membermounted in the head portion, and a stationary punch member mounted inthe base portion, and an actuating rod or shaft projected through thehead portion at right angles to the punch members.

Another object of my invention is to provide a perforator of an integralhead and base units, each having an intermediate paper-receiving throat,with the punch members oppositely disposed relative thereto,

and with the movable punch member guided p within the head its entirerange of movement and its cutting end guided through the throat opening,whereby delicate radiating ribs may be provided and operated throughheavy thicknesses of material, without disturbing its alinement.

Another object of my invention is to provide a perforator, with one ormore unitary perforating units adjustable upon a superstructure, theunits resting upon rails eX- tended longitudinally with the adjustmentof the units. The rails providing multiple points of bearing contact. Athroat depth gage and a two-fold functioning lock for setting the depthgage and the perforator units in their respective adjustments.

The features of my invention will be more fully set forth in thedescription of the ac companymg drawings, forming a part of thisspecification in which 2- Figure 1 is a top plan view of my punch orperforator with one of the perforator units shown in section, and aportion of the supporting table cut away. FigQ is a rear end elevationof a portion of the machine shown in Fig. 1. Fig. 3 is a side elevationof the same. Fig. 4; is a detailed side elevation of a perforator unit.Fig. 5 is a section on line a', Fig. 1. Fig. 6 is a view similar to Fig.l, but illustrating a modified form of perforator unit and punchactuating rod. Fig. 7 is a section on line w, fw, Fig. 6. Fig. 8 is atop plan view of a sheet of paper perforated by punch members such asshown in Figs. 6 and 7.

The perforator herein shown and described is primarily adapted forperforating paper, and of a hand-operated type, to perfor-ate sheetsintended for temporary binding, and to prepare the same for the loosesheet holders known to the trade as temporary binders. The perforatorunits are adjustable to increase their range of use.

Vith my improvement the perforator units are self-contained unitarystructures conveniently adjusted without disturbing the operativemechanism. It is obvious, however, that the general features of myinvention can be embodied in a perforator in which the perforator unitsare formed integrally with a common base and the partspermanentlylocated, for a standard spacing of perforations, and suchpermanently spaced type of perforator is herein included, except whereotherwise specifically distinguished in the claims herein. The base, orsuper-structure upon which the perforator units are adjustablysupported, is preferably of skeleton form, with the perforator unitsresting upon rails, rendering it possible to manufacture a very strongand rigid structure, and very light in weight. This super-structurecomprises the side or end plates 1, 2 connected by the rails 8, 4, and5, with rails 4 and 5 relatively superposed and parallel providing anintermediate way 6 and opposing bearing surfaces 7 and 8. The rail 3supports the forward portion of the perforator units, while the rails 4,5 support the rear portion thereof. Thus a clearance is produced betweenthe forward and rearward rails, into which the perforator units dependor project, enabling the production of a circular form of perforato'runit body to materially increase its strength at such portions receivingthe greatest strain.

9 represents the body of the perforator unit, provided with anintermediate cutaway throat portion 10 separating the upper and lowerdie or punch members. The body is formed substantially circular inoutline, withv the base portion 11, in which the stationary die memberis mounted, depending or projecting into the clearance between therails, enabling the production of a narrow perforator unit, increased incross sectional area at the points receiving the punching strains directand torsionally radiating from the throat as a center. Thus, the headand base portions or elements are capable of withstanding the opposingperfor-ating strains without fracture to the punch body as an integralelement and the substantial elimination of suoli strains upon the railsof the super-structure. The rear portion of the body 9'is provided withal lugor anchor projectionl 12, having the right angled top and bottombearing surfaces, the vertical surfaces forming shoulders, engagingrespectively with the rails 4 and 5 to prevent displacement of the bodyupon the rails, and relatively insure and maintain the alinement of thepunch units of a series. This lug 12 projects preferably in a radialline with the throat 10.l The throat is provided with a depth gage inthe nature of a slide block 13 adjustable within the throat by means ofthe adjusting screw 14 projecting through the rear portion of the body,and lug projection, and medially between the rails 4, 5.

15 represents a nut screw-threaded upon the screw 14 adapted to engagebearing surfaces formed upon the rails 4, 5, for locking the bodyorfperforating unit in any adjusted position, at the same time servingas a set-nut, for locking the depth gage screw in its adjusted position.Thus, the nut and screw perform a twofold function, and cheapen the costof manufacture, by a reduction in the number of parts.

16v represents aY rock shaft (see Fig. 1f)

having a longitudinal splinevl?. This shaft is supported in the endplates 1, 2, with one end of the shaft provided with a hand lever 1S,(see Fig. 3) for rocking said shaft. The

lever 18 is provided with stop lugs 19, 20,

radiating therefrom adapted to engage abutments formed on the end plate2, to limit the motion` of the rock shaft in either die rection, thefunction of which will be described hereafter.

In the form of perforator shown in Figs. 1 and 5 each head of theperforator units is provided with a bore concentric with the shaft 16,and intowhich a pinion 21 is mounted, and splined to the shaft 16, theteeth of the pinion engagingv the circumference of the bore, whichthereby serves as a bearingfor the shaft and pinion, prevent-v ingHerring thereof. The teeth of the pinion engage with teethy formed onthe stem of the movable punch member 22, to reciprocate the samevertically within the head of the perforator unit upon rotation of theshaft and pinion.` The pinion isA provided with an annular groove, intowhich a pin 23 projects for retaining the gear or pinion within the boreof the head tol prevent its displacement in a lateral adjustment of theperforator unitl upon its base or superstructure. 24 represents a guideblock mounted within the head at the upper portion of the throat throughwhich the punch end of the movable punch member projects and travels.Such guide block can, however, be dispensed with when the punch end isof the same diameter as its stem, but is advantageous when the punch endis of smaller cross-sectional area than its stem, as it preventsdisplacement of alin'ement with the stationary punch member. 25represents a stationary punch member comprising a removableI plateseated and secured within the base of the perforated unit. Thisconstruction of movable and stationary punch members enables the same tobe readily removed for substitution, tochange the die elements. The baseof the perforator unit beneath the stationary punch member is providedwith an orifice 26 to rei ceive the cuttings and discharge the same intoa receptacle, which may be mounted at the base of the rails.

In the form illustrated in Figs. 6 and 7 the rock shaft 16L comprises acombined shaft and elongated pinion with the teeth thereof extendedsubstantially the entire length of the shaft, between the end plates 1,2. This form eliminates the independent pinion in eachhead as shown inFigs. 1 to 5. The teeth of the shaft 16a engaging and journalingdirectly against the surface of Ithe bore throughy which it projects,and mayl be regardedl as the preferable formv of rock: sha-ft, althoughsuch shaft must be made 1n special sizes commensurate with each size ofsuper-structure, to accommodate for a complete range of adjustment. Thetoothed formation on the roel; shaft 16a or pinion 21, is of a numbersufficient to compensate for the maximum movement of the movable punchmember with the untoothed peripheral portion of each increasing thebearing surface. Therefore, to prevent undue strains from being broughtupon the teeth of the stem of the movable punch member, at the limits ofpunch movement, the operating lever is provided with the stopsheretofore described, relieving such strains from being imparted to theteeth, which might have a tendency to rupture or break the same.

To provide open perforations, as illustrated in Fig. 8, in the ends of asheet of paper, the movable punch member is provided with a. radiatingrib 27, which type permits the insertion or removal of a sheet at randomwithin the holder, without disturbing the other sheets contained in theholder, or without removing the binder elements, upon which the sheetsare mounted. rEhe free end of said rib is guided in its entire range ofmovement in the guide way 28 formed in the perforator unit, therebyinsuring the intermesh or registration of the -punch members, and alsoenables the rib to be of a small area in cross section to merely providea cut for accessibility to the perforations, so as not to: materiallydisturb the texture of the paper along its marginal perforated edge. 30represents a table plate secured to the side frames 1 and 2, extendingin a horizontal plane from the plane of the lower surface of the throat,upon which the material to be perforated is supported. 3l represents agage adjustably secured upon the table plate 30.

Having described my invention, I claim l. A perforating machine,comprising a super-structure composed of a series of cross rails, twothereof relatively superposed and parallel providing opposing bearingsurfaces and an intermediate way, a perforator unit engaging all of saidrails of the series and projecting into said way, and engaging saidbearing surfaces to prevent displacement of the unit.

A perforating machine, comprising a super-structure composed of a seriesof `cross rails, two thereof relatively superposed and parallelproviding opposing bearing surfaces and an intermediate way, aperforator unit engaging all of said rails of the series and projectinginto said way, and engaging said bearing surfaces to preventdisplacement of the unit, and means for locking said perforator unit tosaid superposed rails.

3. In a perforating machine combining a frame of skeleton form,comprising a series of three parallel cross rails, a forward and twosuperposed rear rails, with a perforator unit of circumferential outlinesupporte upon said rails, with a portion thereof depending between theforward and rear pair of rails, said superposed rails having opposinglongitudinal and vertical bearing surfaces against which said perforatorunit engages to prevent displacement, and means for clamping the same tosaid rails.

4. In a perforating machine, a superstructure thereof, comprising aseries of longitudinal rails upon and between which one or moreperforator units are adjustably mounted and secured, a pair of saidrails relatively superposed and parallel, providing an intermediate wayfor the reception of a portion of the perforator unit, or units, and towhich they are clamped in any adjusted position.

5. In a perforating machine, a superstructure thereof, comprising aseries of longitudinal rails relatively spaced, a perforator unit ofsubstantially circular outline having a cut-away throat portion along ahorizontal radius line thereof defining the head and base portionsthereof, with the base portion supported on said rails and dependingbetween same and adjustable thereon, means for clamping the perforatorunit in any adjusted position, punch members above and below saidthroat, the upper comprising a movable member having a toothed formationlongitudinal thereof, a toothed actuating rod supported within said headat right angles to the movable punch member with its teeth intermeshedwith the teeth of the movable punch member.

6. A perforating machine comprising a super-structure having a series oflongitudinal rails relatively spaced, two thereof relatively superposedand parallel, providmg opposing bearing surfaces and an intermediateway, one or more perforator units, each of circular outline having acut-away throat portion extended along a horizontal radius line thereofdefining the head and base portions of the unit, a plane surface formedupon the base of said unit adapted to engage one of the rails of theseries, a projection extending from the rear portion of said unitadapted to project into said way formed by the superposed rails, andengage against the bearing surface, and means for locking the unitsthereto.

7. A perforator machine comprising a super-structure having a pair oflongitudinally superposed relatively parallel rails, a perforator unitprojecting between said rails and engaging therewith, having a throatformed therein in a horizontal plane, a depth gage block slidablymounted within said throat having an adjusting screw projected throughsaid perforator unit, and between said superposed rails, a nut threadedupon said screw for locking the same and the. perforator unit to therails in any adjusted position.

8. A perforating machine having a base, a pair of parallel superposedrails providing opposing bearing surfaces, and an intermediate waylongitudinally above the base, a perforator unit integrally combining ahead element and a base element divided at the forward portion by aslot, the base element having a plane surface at its lower forwardportion to provide a foot for the unit` resting upon the base, and anelement projecting rearwardly from the unit having opposing planesurfaces to provide a rear support for the unit and projected betweenand engaging with said rail bearing surfaces.

9. A perforating machine having a base, a pair of parallel superposedrails providing Copies of this patent may be obtained for ve cents each,

opposing bearing surfaces, and an intermedlate way longitudinally abovethe base, a perforator unit integrally combining a head element and abase element divided at the forward portion by a slot, the base elementhaving a plane surface at its lower forward portion toprovide a foot forthe unit resting upon the base, and an element projecting rearwardlyfrom the unit having opposing plane surfaces to provide a rear supportfor the unit and projected between and engaging with said rail bearingsurfaces, and means for binding said unit to said rails.

In testimony whereof, l have hereunto set my hand.

CHESLEY DOM. Witnesses:

OLIVER B. KAISER, CLARENCE B. FOSTER.

by addressing the Commissioner of Patents,

Washington, D. C.

